explain_timerfd_create_or_die - create file descriptor timers and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                explain_timerfd_create_or_die(3)

       The  explain_timerfd_create_or_die function is used to call the timerfd_create(2) system call. On failure
       an explanation will be printed to stderr, obtained from the explain_timerfd_create(3) function, and  then
       the process terminates by calling exit(EXIT_FAILURE).

       The  explain_timerfd_create_on_error  function  is  used  to  call  the timerfd_create(2) system call. On
       failure an explanation will be printed to stderr, obtained from the  explain_timerfd_create(3)  function,
       but still returns to the caller.

       clockid The clockid, exactly as to be passed to the timerfd_create(2) system call.

       flags   The flags, exactly as to be passed to the timerfd_create(2) system call.

       The  explain_timerfd_create_or_die  function is intended to be used in a fashion similar to the following
       example:
              int result = explain_timerfd_create_or_die(clockid, flags);

       explain_timerfd_create_or_die - create file descriptor timers and report errors

       The  explain_timerfd_create_or_die  function  only  returns  on  success,  see timerfd_create(2) for more
       information. On failure, prints an explanation and exits, it does not return.

       The  explain_timerfd_create_on_error  function  always  returns  the  value   return   by   the   wrapped
       timerfd_create(2) system call.

timerfd_create(2)
               timers that notify via file descriptors

       explain_timerfd_create(3)
               explain timerfd_create(2) errors

       exit(2) terminate the calling process

       #include <libexplain/timerfd_create.h>
       int explain_timerfd_create_or_die(int clockid, int flags);
       int explain_timerfd_create_on_error(int clockid, int flags);